In this study the investigators will include adult patients who are not part of a vulnerable patient population. Inclusion criteria include patients who will be undergoing resection of part of their colon that will require dividing the IMA. The investigators will use the resected surgical specimens for our project. The investigators will use the EnSeal on all major vessels in our procedure. The investigators will use the EnSeal 5 mm round head model. Due to the nature of the project, we will apply for IRB approval prior to beginning our research. The investigators plan to include 60 total patients in the study, 30 at the University of Illinois and 30 at Lutheran General Hospital.